Its Free! Microsoft 'Office For iPad', iPhone & 'Droid

Microsoft Office has been freed to rival platforms: iOS iPad, iPhone and Android.

But Apple will still take a 30% cut off Microsoft for subscriptions to Office for iPad.

After weeks of rumors, Office for iPad app was launched in San Francisco, yesterday, which runs Office 365 suite including Word, Excel and PowerPoint. Microsoft says this release for iPad is a step further in its 'mobile first and cloud first' approach, championed by its new CEO.

Microsoft built Office 365 for iPad's ecosystem specifically, something which Apple Insider also noted in an early test.

"This isn't simply Office on another device. We thought a lot about what people want to do when they're on their tablet, iPad functionality, and touch-first when we were building Office for iPad.

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"We reimagined Office on the iPad, while retaining what people love about Office," wrote Microsoft's John Case on a blog.

Apple confirmed to Re/Code that it would be taking one third of the subscriptions fee from the app, available on iTunes.